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| author | Kohei Enju <kohei@enjuk.jp> | 2026-01-17 16:00:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-06 16:57:39 +0100 |
| commit | e4e15a0a4403c96d9898d8398f0640421df9cb16 (patch) | |
| tree | bef4b36aaf01b6fd34b5508031887620a5efdfc8 /include/net/aligned_data.h | |
| parent | 14ca9fa020829cfa7d43846c241058961f5ac79b (diff) | |
efivarfs: fix error propagation in efivar_entry_get()
commit 4b22ec1685ce1fc0d862dcda3225d852fb107995 upstream.
efivar_entry_get() always returns success even if the underlying
__efivar_entry_get() fails, masking errors.
This may result in uninitialized heap memory being copied to userspace
in the efivarfs_file_read() path.
Fix it by returning the error from __efivar_entry_get().
Fixes: 2d82e6227ea1 ("efi: vars: Move efivar caching layer into efivarfs")
Cc: <stable@vger.kernel.org> # v6.1+
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions